And duane n



UNIT D STATES PATENT FFICE.

FREDERICK A. O. WUNDERLIOH, OF NEW YORK, AND DUANE N. GLEASON, OFBROOKLYN, NEW YORK.

TURNING-LATHE.

SPECIFICATION forming part of Letters Patent No. 512,427, dated January9, 1894.

Application filerl January 20,1892.

To all whom it may concern.-

Be it known that we, FREDERICK A. O. WUN- DERLICH, residing at New York,in the county of New York, and DUANE N. GLEASON, residing at Brooklyn,in the county of Kings, State of New York, citizens of the UnitedStates, have invented certain new and useful Improvements inTurning-Lathes, of which the following is a specification.

Our invention relates to improvements in turning lathes in which thetail stock is provided with mechanism for performing a number ofconsecutive operations.

' The objects of our improvements are to provide means for a rapid andaccurate adj ustment of the tools to position, thus enabling theoperations to be more quickly performed and a saving in material made.

These improvements are particularly applicable to the turning lathepatented by Ernest Lindner January 31, 1888, No. 377,080.

Figure 1 is a front View of the adjusting wheel and appurtenances;Fig.2, a section on line 1. 2. Fig. 1; Fig. 3 a top view of clutch arm;Fig. 4, a front elevation showing the improvement applied to a lathe;Fig. 5. an enlarged vertical section of crank arm and de tails; Fig. 6an enlarged horizontal section of same; Fig. 7. a view partly in sectionof crank and clutch arm.

Similar letters refer to similar parts in all views.

The tail stock A rests upon the lathe bed B upon which it moves as iscustomary in lathes of this class. A part 0 of the tail stock is raisedabove the bed B for the purpose of supporting a part D which isadjustable longitudinally upon O. This part D may be secured rigidly toA by means of a sleeve 01 attached permanently to D and a set screw 01working in dagainst 0. The part D carries a head E and spindle F towhich spindle a tool chuck may be attached at f in the custo marymanner. A shaft H is journaled upon the tail stock at O. A pinion H uponthe shaft H takes into a rack 1) upon the lathe bed. By revolving theshaft H the tail stock is moved longitudinally upon the lathe bed. Acrank J serves to turn the shaft H. A flanged disk K is keyed upon theshaft H which it turns by means of the crank L and a may be attached tothe stops to facilitate Serial No. 418,656. (No model.)

a clutch arm M. The movement of the crank L is limited by stops N N Nadjusted upon the curved arm N which is bolted to the tail stock at n.The curved arm N may be divided into spaces a by any scale, for use insetting the stops. The stops N N may consist of sleeves upon the bentarm Nheld in position by set screws 07. n Set screws n closeadjustment.V

The clutch arm M rests at one end m in a recess Z in the hub L of thecrank L. The opposite end m projects beyond the flange /0 of the disk Kand has two pins m wa one on each side of the flange. Aspring mextending from an arm L attached to hub L, to the clutch arm Mconstantly pulls M so that both pins m m bear against the flange k.

The crank L has a pin Z projecting from one side which may be broughtinto contact with the stops N N A pin l -slides longitudinally throughpin Z to be brought against the stop N See Figs. 5 and 6. This slidingpin Z is operated by a lever L fulcrumed at Z having a thumb piece Z anda flange Z. The flange Z is provided with a beveled part 1 which causesthe pin Z to project beyond the end of pin Z when the lever L is causedto take the position shown by the dotted lines. A spring Z restores thelever L to the position shown in full lines andaspring l returns pin Zwhen liberated by the lever L The clutch arm M may be duplicated at theopposite side of the flanged disk K as shown by dotted lines at M. Bythis means the strain may be equally divided bet-ween theopposite sidesof the flange Z0, permitting the use of lighter parts.

A lever O journaled on the hub J and extending from a pin 1% on arm M toa pin m similarly situated on arm M causes the two arms M and M to movecorrespondingly so that either arm M or M being operated by the handpiece m or m the opposite arm will be similarly operated.

An upright P is adjustably attached to the tail stock A. It can befitted so as to move longitudinally upon A and be firmly attached in anydesired position by a screw and nut as shown at P or by any other wellknown means. This upright sustains and steadies IOO the rod to beoperated upon and may also have tools attached thereto as is now wellknown in the art. A hollow spindle S is mounted on B in the customarymanner.

The crank J can be used to move the tail stock in either direction onthe lathe bed, as is now common in lathes. The tail stock A is movedtoward the left by the crank L to any desired position determined bystops N N N as secured to the curved arm N. This is effected by means ofthe clutch arm M which operates as follows: The end of arm M rests in arecess 1 in the hub L. See Fig. 7. The end m is drawn by spring m towardarm L until the pins m m both rest against flange k causing M and 7a tobe immovably united by any force applied in an upward direction at theend m. If now lever L is moved to the left, that is in direction ofarrow 1, the hub L turns, carrying with it arm M and flange it whichthrough the disk K transmits motion to shaft H, pinion II and tail stockA. This motion is arrested at any point desired by a means of the pins ZZ on lever L coming in contact with stops on arm N.

The crank L operates in conjunction with the stops on arm N as follows:Tail stock A is moved by crank J to any point desired. The material tobe operated upon is introduced through the hollow spindle S and uprightP in the same manner as in lathes heretofore in use. A tool chuck withthe number of tools desired is attached to spindle F at f. The lever Loccupies a position with pin Z against stop N Assuming that the firstoperation it is desired to make requires the tail stock to occupy aposition that is determined by the pin Z coming in contact with stop Nlever L is pressed by the thumb and caused to take the position shown bybroken lines Fig. 1, pin Z is caused to project beyond the end of pin Zas indicated by broken lines, and crank L is now moved to the left untilstopped by N The desired tool is caused to operate by the usual means.The

tail stock can now be caused to move forward another step for a newoperation by releasing lever L thus allowing pin Z to be withdrawn bythe spring, as before explained, to a position determined by stopNagainst which pin l strikes. It is obvious that any number of stops canbe arranged on arm N to be used successively.

\Vhat we claim is- 1. In aturning lathe, the combination with a crankand :crank shaft mounted on a tail stock, of a pinion on said shaftworking in a fixed rack on the lathe bed, a plurality of clutches forconnecting said crank and crank shaft, and a connection extending fromone to another of said clutches whereby the two are caused to movecorrespondingly, substantially as specified.

2. In a turninglathe, the combination with a tail stock, of a crank andcrank shaft, a clutch for connecting said crank and crank shaft, agraduated arm, adjustable stops on said arm, and means coacting withsaid stops to limit the movement of the crank shaft, substantially asspecified.

In a turning lathe the combination with a tail stock of a crank a clutchand an arm with adjustable stops substantially as specified.

4. In a turning lathe the combination with a tail stock of a crankhaving spring pin, a clutch and an arm with adjustable stopssubstantially as specified.

5. In a turning lathe the combination with a tail stock of a crankoperating a clutch, an adjustable stop on said crank and adjustablestops attached to the tail stock, substantially as specified.

6. In a turning lathe, the combination with a lathe bed, of a tail stockmounted thereon, a curved arm carried by the tail stock, a lever foradjusting said tail stock, adjustable stops on said arm, a pin carriedby said lever adapted to coact with the stops on the arm, and a levercarried by the first named lever for operating said pin in onedirection.

Signed at New York, in the county of New York and State of New York,this 19th day of January, A. D. 1892.

FREDERICK A. C. WUNDERLICH. DUANE N. GLEASON.

Witnesses:

EMIL F. GENNEET, JAMES B. DEMOTT.

